Intrusion prevention intelligent security system

Abstract

This utility model relates to an intelligent intrusion prevention security system, comprising a security sensing device, an alarm response device, and a security host. The security sensing device includes a fixed infrared communication sensing device mounted on the fixed end of the opening / closing mechanism and a mobile infrared communication sensing device mounted on the moving end of the opening / closing mechanism. When the opening / closing mechanism is closed, the mobile infrared communication sensing device cooperates with the fixed infrared communication sensing device for real-time two-way encrypted communication. The fixed infrared communication sensing device is connected to the security host, and its communication status with the mobile infrared communication sensing device is fed back to the security host by responding to a true random mathematical problem. The security host is connected to the alarm response device, and is used to monitor the operating status of the alarm response device and the feedback information from the fixed infrared communication sensing device in real time, and can control the opening and closing of the alarm response device. The purpose of this utility model is to provide an intelligent intrusion prevention security system that can achieve efficient and rapid security response, providing comprehensive and intelligent security protection.

Description

Technical Field

[0001] This utility model relates to the field of security, specifically an intelligent intrusion prevention security system. Background Technology

[0002] In recent years, the demand for security systems has continued to grow, leading to a surge in the market offering a wide variety of security products. However, the security and threat mitigation capabilities of these products often fall short of expectations. When faced with proactive intrusion attacks, many security products prove vulnerable and easily compromised, rendering them ineffective in their protective functions. This situation can significantly undermine public confidence in security products, potentially triggering a crisis of trust. While no system is absolutely secure, if a system's vulnerabilities can be easily exploited, then the system loses its practical value.

[0003] Several common problems with traditional security systems:

[0004] ① Lack of identity security authentication: Traditional security systems often lack identity security verification mechanisms for various security sensors. This deficiency allows potential attackers to take advantage of the situation. They may try to replace the original security sensors, but such anomalies cannot be detected by the security host in a timely and accurate manner, thus affecting the normal operation of the entire system.

[0005] ② Unencrypted or weakly encrypted communication cables: Security systems typically use traditional wired communication methods, such as cables and network cables, to transmit data. Due to the characteristics of these methods, communication data is susceptible to eavesdropping or interference. Attackers can easily intercept plaintext information or data processed with weak encryption (e.g., transmitting simple level signals or regular data packets) and use this information to perform decryption, seriously threatening the stability and security of the security system. Furthermore, the communication methods of traditional security systems are also vulnerable to malicious information tampering. Attackers can tamper with the content of data packets during transmission, thereby compromising the integrity of the system. For example, attackers can modify video surveillance signals, deleting or replacing certain key images with false images to mislead security personnel's judgment, or tamper with alarm signals, leading to false alarms or failure to alarm in a timely manner.

[0006] ③ Lack of electrical isolation between internal and external communication and power supply lines: Traditional security systems lack effective electrical isolation measures between internal and external communication and power supply lines. Once external lines are subjected to destructive attacks such as strong backflow of electricity (e.g., connecting 220V AC power to any external cable) or short circuits, the internal lines will be affected, causing greater damage and posing a significant threat to the stability of the entire system.

[0007] ④ Unable to resist network jamming interference: When faced with targeted full-band network jammers (or other malicious network disconnection behaviors), most security systems may be affected, especially when they need to trigger an alarm response. They may be unable to maintain communication with the outside world, resulting in the inability to send alarm information, ultimately creating a gap in security protection.

[0008] In summary, existing security systems suffer from a series of problems, ranging from a lack of secure identity authentication to inadequate protection of communication cables, insufficient isolation between internal and external lines, and poor response to network shielding interference. Summary of the Invention

[0009] The purpose of this invention is to provide an intelligent intrusion prevention and security system that can achieve efficient and rapid security response and provide comprehensive and intelligent security protection.

[0010] The objective of this utility model is achieved through the following technical solution: an intrusion prevention intelligent security system, comprising a security sensing device, an alarm response device, and a security host; the security sensing device includes a fixed infrared communication sensing device on the fixed end of the opening and closing mechanism and a mobile infrared communication sensing device on the moving end of the opening and closing mechanism, wherein the mobile infrared communication sensing device cooperates with the fixed infrared communication sensing device to perform real-time two-way encrypted communication when the opening and closing mechanism is closed; the fixed infrared communication sensing device is connected to the security host, and the fixed infrared communication sensing device feeds back its communication status with the mobile infrared communication sensing device to the security host by responding to a true random mathematical problem of the security host; the security host is connected to the alarm response device, and the security host is used to monitor the operating status of the alarm response device and the feedback information from the fixed infrared communication sensing device in real time, and can control the opening and closing of the alarm response device.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] 1. This utility model includes a security sensing device, an alarm response device, and a security host. By deploying security sensing devices in locations such as roller shutters, doors and windows, and safes, the security host can monitor the status of the protected area in real time. Once an intrusion occurs (including but not limited to forced intrusion, power outage, network outage, network blocking, damage or cracking of security cables, high voltage backflow, etc.), the security host will trigger an alarm response immediately. Indoor and outdoor alarm response devices will drive away the intruders through flashing warning lights and on-site high-decibel (120dB) voice warnings, and cloud-based alarms will be sent via telephone, SMS, WeChat, and email.

[0013] 2. In this utility model, the mobile terminal of the infrared communication sensing device cooperates with the fixed terminal of the infrared communication sensing device to conduct real-time two-way encrypted communication when the opening and closing mechanism is closed. The encrypted communication uses a true random number generator and a random number entropy pool to generate random mathematical problems, which can avoid problems such as statistical regularity or periodic question and answer in the communication between the security host and the security sensing device, and prevent forced decryption.

[0014] 3. Both the security sensing equipment and the alarm response equipment have built-in attitude sensors. When the equipment experiences vibration or changes in displacement, angle, or attitude that exceed a certain threshold, the system will trigger an alarm to effectively prevent potential acts of violence.

[0015] 4. Data transmission between the security sensing devices and alarm response devices and the security host is achieved through communication modules and specific communication protocols. Security Sensing Devices: The security host generates a true random mathematical problem, encrypts it, and sends it to the security sensing device. The security sensing device decrypts the received problem and encrypts its response to the problem from the security host. Different response algorithms generate different answers representing different device states (e.g., Answer A: Device is working normally; Answer B: Device is malfunctioning, etc.). The security host obtains the operating status of the security sensing device by comparing the answer values ​​of the source problem. When communication is abnormal, and the security host continuously detects no response or incorrect responses, it considers the security sensing device abnormal and triggers an alarm. Alarm Response Devices: The security host and alarm response devices take turns generating and encrypting and sending true random mathematical problems, which are then responded to by the receiver. When the security host receives multiple consecutive no responses or incorrect responses, communication is abnormal, and the alarm response device automatically triggers an alarm response; when the alarm response device receives multiple consecutive no responses or incorrect responses, communication is abnormal, and the security host automatically triggers an alarm response. Waiting Timeout: If the receiver waits for a timeout while receiving the encrypted problem, it is considered a communication abnormality, and the device automatically triggers an alarm response.

[0016] 5. The security host, security sensing devices, and alarm response devices are all equipped with backup power supply modules. Through the UPS charging and discharging circuit and switching circuit, rapid switching is achieved. In the event of a power outage or sudden power failure, the power supply can be quickly taken over to prevent the security system from failing due to power failure, thereby improving the stability and reliability of the system.

[0017] 6. Effective electrical isolation and protection measures are taken between the internal and external communication and power supply lines of the security system (internal and external communication lines; optical coupler isolation, fiber optic communication; external power supply lines: multi-level protection circuits, isolated power supply). Once the external lines are subjected to destructive attacks such as strong power backflow (e.g., arbitrary access to 220V AC power) or short circuits, the internal lines can be prevented from being affected, ensuring the reliability of the system. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the structure of a fixed end and a mobile end of an infrared communication sensing device in a cooperative state according to this utility model.

[0019] Figure 2 This is a schematic diagram of the fixed end of an infrared communication sensing device.

[0020] Figure 3 This is a schematic diagram of the internal structure of the fixed end of an infrared communication sensing device.

[0021] Figure 4 This is a schematic diagram of the structure of the mobile terminal of an infrared communication sensing device.

[0022] Figure 5 This is a schematic diagram of the internal structure of the mobile terminal of an infrared communication sensing device.

[0023] Figure 6 This is a circuit connection diagram (optical communication module communication) of an embodiment of an anti-intrusion intelligent security system of this utility model.

[0024] Figure 7 This is a circuit connection diagram for security sensing devices and alarm response devices.

[0025] Figure 8 This is a connection diagram of an optical communication module.

[0026] Figure 9 This is a circuit connection diagram (Ethernet module RJ45 communication) of an embodiment of an anti-intrusion intelligent security system of this utility model.

[0027] Figure 10 This is a connection diagram of the communication module using an Ethernet module RJ45.

[0028] Labeling Explanation: 1. Fixed end of infrared communication sensing device; 1-1. Fixed end housing; 1-2. Fixed end microcontroller unit; 1-3. Infrared codec module A; 1-4. Wireless charging coil A; 2. Mobile end of infrared communication sensing device; 2-1. Mobile end housing; 2-2. Mobile end microcontroller unit; 2-3. Infrared codec module B; 2-4. Wireless charging coil B; 2-5. Supercapacitor; 3. Attitude sensor. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] like Figure 1-10 The diagram shown is an embodiment of an intrusion prevention intelligent security system provided by this utility model.

[0031] An intrusion prevention intelligent security system includes security sensing devices, alarm response devices, and a security host;

[0032] The security sensing device includes an infrared communication sensing device fixed end set on the fixed end of the opening and closing mechanism and an infrared communication sensing device mobile end set on the moving end of the opening and closing mechanism. When the opening and closing mechanism is closed, the infrared communication sensing device mobile end cooperates with the infrared communication sensing device fixed end to perform real-time two-way encrypted communication.

[0033] The fixed end of the infrared communication sensing device is connected to the security host, and the fixed end of the infrared communication sensing device feeds back the communication status between itself and the mobile end of the infrared communication sensing device to the security host.

[0034] The security host is connected to the alarm response device. The security host is used to monitor the operating status of the alarm response device and the feedback information of the security sensing device in real time, and can control the opening and closing of the alarm response device.

[0035] Both the security sensing device and the alarm response device are equipped with attitude sensors.

[0036] When the attitude sensor detects vibrations or changes in displacement, angle, or attitude exceeding a threshold, an alarm response is triggered. The MCU within the security sensing device and alarm response device actively interrupts communication, and the security host responds to the alarm.

[0037] When the fixed end of the infrared communication sensing device is separated from the mobile end of the infrared communication sensing device, the directional light communication is interrupted, and the security host responds with an alarm.

[0038] When external malicious attacks interfere with optical communication or the MCU, the communication response becomes abnormal, and the security host responds with an alarm.

[0039] The fixed end of the infrared communication sensing device supports communication with the security host via wired or wireless means (wired communication is preferred, and wireless communication supports encryption methods such as AES256). When the two-way random encrypted communication is interrupted or abnormal, the security host will respond with an alarm.

[0040] This utility model can be applied to situations requiring security, such as roller shutters, doors and windows, and safes.

[0041] The security sensing device also includes a human presence sensing radar, which is a millimeter-wave radar sensing device. The millimeter-wave radar sensing device supports connection to the security host via wired or wireless means (wired communication is preferred, and wireless communication supports encryption methods such as AES256).

[0042] Millimeter-wave radar sensing equipment is used to arm designated areas. It supports adjusting the response threshold and sensing area, and communicates with the security host via randomly encrypted cables (communication interruption response mechanism). When the millimeter-wave radar detects an event exceeding the threshold, the MCU actively interrupts communication with the security host, and the security host responds with an alarm.

[0043] Millimeter-wave radar sensing equipment can be installed indoors. Its working principle involves using FMCW (Frequency Modulated Wave) to modulate continuous waves and detect human targets within a designated space. Combined with radar signal processing and precise human detection algorithms, it achieves highly sensitive human presence sensing, capable of identifying both moving and stationary human bodies, unaffected by temperature, humidity, cooking fumes, or water mist.

[0044] The alarm response device includes a voice alarm, a flashing light, and a buzzer.

[0045] The voice alarm uses a high-power voice alarm (120dB) and a red-blue dual-color strobe light. It adopts a two-way random encrypted communication mechanism and supports customized voice broadcast content (audio files) and light strobe modes. When communication is abnormal, both the alarm response device and the security host will respond to the alarm.

[0046] The response mechanism of the buzzer is the same as that of the voice alarm.

[0047] The security control unit is also equipped with a wireless communication module that connects to the IoT cloud platform. When the security control unit responds to an alarm, the cloud platform receives the alarm command and triggers an alarm response; when the security control unit is offline or has a weak (abnormal) signal, the cloud platform automatically triggers an alarm response.

[0048] The fixed end of the infrared communication sensing device includes a fixed end housing, a fixed end microcontroller unit disposed inside the fixed end housing, and an infrared codec module A connected to the fixed end microcontroller unit;

[0049] The infrared communication sensing device mobile terminal includes a mobile terminal shell, a mobile terminal microcontroller unit disposed inside the mobile terminal shell, and an infrared codec module B connected to the mobile terminal microcontroller unit; the infrared codec module A and the infrared codec module B cooperate with each other when the opening and closing mechanism is closed.

[0050] The mobile terminal of the infrared communication sensing device also includes a wireless charging coil B and a supercapacitor connected to the wireless charging coil B. The mobile terminal microcontroller is powered by the supercapacitor.

[0051] The fixed end of the infrared communication sensing device also includes a wireless charging coil A. The wireless charging coil A and the fixed end microcontroller are respectively connected to an external independent power supply mechanism. When the opening and closing mechanism is closed, the wireless charging coil B receives the electromagnetic signal from the wireless charging coil A and charges the supercapacitor.

[0052] The working principles of the fixed and mobile ends of infrared communication sensing devices are as follows:

[0053] The fixed end of the infrared communication sensor can be installed on the ground, while the mobile end can be installed on the roller shutter door. The fixed end of the infrared communication sensor is powered via an aviation interface, and is connected to a wireless charging coil A and a 5V step-down module via a power cord. The former is responsible for charging the mobile end of the infrared communication sensor, while the latter provides power to the microcontroller unit of the fixed end.

[0054] With the roller shutter door closed, the fixed end of the infrared communication sensor is aligned with the mobile end of the infrared communication sensor, and the mobile end is charged via wireless charging coil A. Once the wireless charging coil B of the mobile end of the infrared communication sensor receives the electromagnetic signal, it first charges the supercapacitor, and then the supercapacitor continuously provides power to the mobile end's microcontroller unit, enabling the mobile end to operate without wiring.

[0055] In addition, magnetic shielding sheets are installed inside the fixed end shell and the mobile end shell. The magnetic shielding sheets are located on the back of the wireless charging coil to prevent the magnetic field of the wireless power supply from interfering with its control circuit board.

[0056] The entire system described above achieves two-way communication, with each MCU connected to its own infrared codec module. By programming the corresponding information into the MCU, the infrared optical communication module can effectively send and receive information, thus achieving the goal of bidirectional optical communication.

[0057] Both the fixed and mobile end housings are equipped with transmitting cavities to limit the range of infrared light emission and reception, ensuring that they can only receive infrared light from directly in front of the cavity, thus effectively detecting the module's status. In the event of an intrusion, communication is interrupted, triggering a system alarm.

[0058] A recessed cavity is created on both the fixed and mobile end housings to establish a directional channel for infrared optical communication. Simultaneously, a 700-1600nm infrared transmission filter (visible light cutoff) is installed in the recessed area to reduce the possibility of external interference during transmission and reception of the infrared transceiver.

[0059] Specifically, when infrared optical communication is interrupted, the fixed-end microcontroller unit in the ground-mounted infrared communication sensing device will actively interrupt or incorrectly reply to the communication with the security host, causing communication abnormalities with the host. This mechanism effectively prevents hacking. The communication rules are as follows: (Security host → Security sensing device) The microcontroller (MCU) in the security host generates a truly random mathematical problem using the true random number generator and random number entropy pool designed in this project. This problem is then encrypted with a custom private key (including but not limited to ASE256 encryption, custom encryption algorithms, etc.) and sent to the security sensing device. The security sensing device then obtains the mathematical problem using the private key and decryption algorithm, solves it, generates an answer encrypted with the private key, and sends it to the security host for verification. The device uses multiple solution algorithms to represent different operating states, thereby achieving secure identity authentication. Using a true random number generator and random number entropy pool to generate problems avoids statistical regularities or periodic question-and-answer patterns in the communication between the security host and the security sensing device, preventing forced decryption.

[0060] The real-time two-way encrypted communication process between the mobile and fixed ends of the infrared communication sensing device is as follows:

[0061] The fixed end of the infrared communication sensing device generates a truly random mathematical problem using a true random number generator and a random number entropy pool. The problem is then encrypted with a custom private key and transmitted to the mobile end of the infrared communication sensing device. The mobile end of the infrared communication sensing device obtains the truly random mathematical problem using the private key and a decryption algorithm, solves it, generates an answer encrypted with the private key, and then encrypts and transmits it to the fixed end of the infrared communication sensing device for verification.

[0062] A true random number generator is a seed source (source of an initial random large number S1 of a certain number of bits) generated by reading specific bits of the electrical noise of a multiplexer analog-to-digital converter (ADC) and specific bits of the system runtime (microseconds) thousands of times within a certain time period and mixing them through mathematical operations. After generating S1, it checks whether S1 is the same as the previously generated initial random large number to remove possible duplicates. At the same time, it checks whether the output value of the multiplexer is within an abnormal range to ensure the randomness and quality of the generated S1.

[0063] The system backs up the obtained random large number S1 into the random number entropy pool. When the random number generation is abnormal, the system combines the data in the random number entropy pool with the used data and processes them to generate new entropy pool data. When the output value of the multiplexer is in an abnormal state, the initial random large number S1 is replaced by a random number D1 from the random number entropy pool.

[0064] Random numbers can also be generated using grouping and shifting:

[0065] Increase data obfuscation through shifting and diffusion. Determine the shift value and move or change the position of each bit of the data to produce a more complex output. Perform obfuscation and diffusion operations, mixing the shifted data with the key or other variables so that each bit in the block is affected by all the bits before and after it, increasing the data's complexity.

[0066] Meanwhile, group shifting can achieve data avalanche, so that any small change in the input will lead to a huge change in the output, increasing the difficulty for attackers to crack.

[0067] Meanwhile, the device also supports other mainstream encryption algorithms such as AES-256 encryption.

[0068] Serial port display module: During local operation and maintenance, the status of the security system can be displayed intuitively, which is convenient for maintenance and debugging.

[0069] The security host includes a security motherboard, a communication microcontroller, a communication module, and an internal backup power supply module;

[0070] The communication module is connected to the fixed end 1 of the infrared communication sensing device, the attitude sensor 3, the millimeter-wave radar sensing device, the voice alarm, the buzzer, and the external independent power supply mechanism, respectively. The communication module is equipped with a detection microcontroller (MCU) that corresponds to the fixed end 1 of the infrared communication sensing device, the millimeter-wave radar sensing device, the voice alarm, the buzzer, and the external independent power supply mechanism.

[0071] The communication microcontroller (MCU) is located between the security motherboard and the communication module. It is used to analyze the status of each detection microcontroller (MCU) on the communication module and feed it back to the security motherboard.

[0072] Each detection microcontroller (MCU) on the communication module transmits status information to the communication microcontroller (MCU) by returning a high-level or low-level signal, so that the MCU can determine whether the current system is in an abnormal state.

[0073] Specifically, different detection microcontrollers (MCUs) are responsible for monitoring and providing feedback to various parts of the system. Each detection MCU sends its measurement results to a communication MCU via a communication module.

[0074] The communication microcontroller (MCU) is responsible for integrating these feedback signals and performing status analysis. If any of the multiple detection microcontrollers (MCUs) returns an abnormal signal, the communication microcontroller (MCU) will determine that the system is currently in an abnormal state. In this case, the communication microcontroller (MCU) will send an abnormal signal to the master microcontroller (MCU) to notify the main control unit of the system that an abnormal situation has occurred and appropriate measures may need to be taken. This design helps the system respond quickly when problems occur, improving system stability and reliability.

[0075] The security motherboard is connected to the AC220V main power supply and the internal backup power supply module respectively. After the AC220V main power supply is cut off, the internal backup power supply module provides uninterrupted power supply.

[0076] The communication module is an Ethernet module RJ45 (see...) Figure 6-8 ) or optical communication module (see Figure 9-10 ).

[0077] When using an RJ45 Ethernet module, an optocoupler isolation board is installed between the communication microcontroller (MCU) and the communication module. This board completely isolates the input and output circuits through internal optocoupler modules, effectively preventing direct conduction of current and voltage, and avoiding problems such as electrical noise, interference, and short circuits. This isolation board not only protects sensitive input and output devices from damage or interference caused by potential differences, but also improves the stability and reliability of the entire system through electrical isolation. Using an optocoupler isolation board effectively reduces negative impacts on system performance, providing a more reliable operating environment.

[0078] The security host is also equipped with a wireless communication module that connects to the IoT cloud platform. The intelligent security alarm system transmits data via a 4G network, can receive instructions from the cloud platform to start or stop the security system, and provides real-time feedback on the system's current status to the cloud platform. During the initialization of the main control MCU, the system performs a status self-check and synchronizes the component status to the cloud platform via a 4G DTU. Simultaneously, if a component status becomes abnormal, the main control MCU will synchronize the abnormal information to the cloud platform in real time. The cloud platform can then visualize and monitor the status of each communication link in real time and locate the anomaly immediately.

[0079] The cloud platform periodically polls the 4G DTU on the security host to ensure the device remains online and responsive. When a device's offline timeout period expires, the cloud platform triggers an alarm response mechanism, immediately notifying multiple designated contacts via phone, SMS, WeChat, email, etc. This security mechanism can also handle potential targeted full-band network jammers.

[0080] The security control unit is equipped with multi-point system voltage monitoring and UPS backup power supply.

[0081] The security motherboard is connected to the AC220V main power supply and the internal backup power supply module respectively. After the AC220V main power supply is cut off, the internal backup power supply module provides uninterrupted power supply.

[0082] Under normal conditions, the main power supply powers the AC-DC 12V step-down module, which in turn powers the UPS charging and discharging circuit, and then the UPS switching circuit via the 5V step-down module. Simultaneously, the UPS charging and discharging circuit charges the UPS battery pack. The MCU monitors the battery pack voltage to control the charging circuit's on / off state, enabling programmable automatic charging control and effectively preventing overcharging and over-discharging. When the battery voltage falls below a set threshold, the UPS charging and discharging circuit begins charging; when the battery voltage reaches the set threshold, charging is paused. The UPS battery pack, composed of lithium batteries and a battery protection board, provides further protection against overvoltage, overcurrent, and short-circuit damage, ensuring reliable UPS power supply. When the main power supply fails, the 12V AC-DC step-down module outputs no voltage, and the UPS switching circuit automatically switches to the UPS battery pack for power supply. During the power supply mode switching interval, a supercapacitor provides power.

[0083] The security sensing and alarm response devices are powered by an external independent power supply, which includes a 220V AC main power supply and an external backup power supply module. In the event of a power outage to the 220V main AC power supply, the external backup power supply module provides uninterrupted power. The system also features multi-point system voltage monitoring. The external independent power supply communicates encrypted with the security host via a communication module, and the security host controls the output of the external power supply. The output of the external independent power supply is also equipped with a two-stage output protection circuit.

[0084] The primary protection circuit uses a DC-DC isolated power supply, while the secondary protection circuit uses a combination of high-power diodes and fuses.

[0085] In some security scenarios, it is necessary to defend against theft or doors with special structures. The conventional solution is to use ordinary or special cables as security ropes. On the one hand, the cables are prone to pre-bridging and then cutting to break the security. On the other hand, in order to "lock" the anti-theft object, the two ends of the security wires need to be connected, but the wire cores at the joint are often less, making them weak and easy to attack.

[0086] This utility model's security sensing device also includes anti-theft armored optical fiber, which uses armored single-mode dual-core optical fiber as the carrier for optical communication. The connection uses an all-metal ultra-short connector (physical connector), and the optical communication is encrypted using the same random encryption communication mechanism as this project, providing a high security factor. The optical transceiver module is installed inside the security host, electrically isolated from the outside, preventing attackers from attacking through the transceiver module itself; attacks can only be made through the external optical fiber. However, all external optical fibers in this system are connected using physical connectors, and the fibers are protected by high-hardness steel (tubular metal coils), supporting high-frequency communication. An alarm response will be triggered if the optical path is interrupted or abnormal (optical attenuation detection mechanism). High-frequency optical fiber communication has extremely high physical difficulty to crack, enabling ultra-long-distance access. The optical transceiver module is located inside the security host, while only the optical fiber is exposed externally, thus increasing the difficulty of cracking.

Claims

1. An intrusion prevention intelligent security system, characterized in that: It includes security sensing devices, alarm response devices, and security control panels; The security sensing device includes an infrared communication sensing device fixed end (1) set on the fixed end of the opening and closing mechanism and an infrared communication sensing device mobile end (2) set on the moving end of the opening and closing mechanism. When the opening and closing mechanism is closed, the infrared communication sensing device mobile end (2) cooperates with the infrared communication sensing device fixed end (1) to perform real-time two-way encrypted communication. The fixed end (1) of the infrared communication sensing device is connected to the security host, and the fixed end (1) of the infrared communication sensing device feeds back the communication status between itself and the mobile end (2) of the infrared communication sensing device to the security host. The security host is connected to the alarm response device. The security host is used to monitor the operating status of the alarm response device and the feedback information of the security sensing device in real time, and can control the opening and closing of the alarm response device.

2. The anti-intrusion intelligent security system according to claim 1, characterized in that: The fixed end (1) of the infrared communication sensing device includes a fixed end housing (1-1), a fixed end microcontroller unit (1-2) disposed inside the fixed end housing (1-1), and an infrared codec module A (1-3) connected to the fixed end microcontroller unit (1-2); The infrared communication sensing device mobile terminal (2) includes a mobile terminal housing (2-1), a mobile terminal microcontroller unit (2-2) disposed inside the mobile terminal housing (2-1), and an infrared codec module B (2-3) connected to the mobile terminal microcontroller unit (2-2); the infrared codec module A (1-3) and the infrared codec module B (2-3) cooperate with each other when the opening and closing mechanism is closed.

3. The anti-intrusion intelligent security system according to claim 2, characterized in that: The infrared communication sensing device mobile terminal (2) also includes a wireless charging coil B (2-4) and a supercapacitor (2-5) connected to the wireless charging coil B (2-4). The mobile terminal microcontroller unit (2-2) is powered by the supercapacitor (2-5). The fixed end (1) of the infrared communication sensing device also includes a wireless charging coil A (1-4). The wireless charging coil A (1-4) and the fixed end microcontroller unit (1-2) are respectively connected to an external independent power supply mechanism. When the opening and closing mechanism is closed, the wireless charging coil B (2-4) receives the electromagnetic signal from the wireless charging coil A (1-4) and charges the supercapacitor (2-5).

4. The anti-intrusion intelligent security system according to claim 3, characterized in that: Both the security sensing device and the alarm response device are equipped with attitude sensors (3).

5. The anti-intrusion intelligent security system according to claim 2, characterized in that, The real-time two-way encrypted communication process between the mobile terminal (2) of the infrared communication sensing device and the fixed terminal (1) of the infrared communication sensing device is as follows: The fixed end (1) of the infrared communication sensing device generates a true random mathematical problem through a true random number generator and a random number entropy pool. Then, it is encrypted with a custom private key and transmitted to the mobile end (2) of the infrared communication sensing device. The mobile end (2) of the infrared communication sensing device obtains the true random mathematical problem through the private key and decryption algorithm, solves it, generates the answer encrypted with the private key, and then encrypts and transmits it to the fixed end (1) of the infrared communication sensing device for verification.

6. The anti-intrusion intelligent security system according to claim 5, characterized in that, The true random number generator is a source of an initial random large number S1 of a certain number of bits, which is generated by reading specific bits of the electrical noise of the multiplexer and specific bits of the system running time thousands of times within a certain period of time and mixing them through mathematical operations. After generating S1, it is checked whether S1 is the same as the previously generated initial random large number to remove possible duplicate content. At the same time, it is checked whether the output value of the multiplexer is in an abnormal range to ensure the randomness and quality of the generated S1. The system backs up the obtained random large number S1 into the random number entropy pool. When the random number generation is abnormal, the system combines the data in the random number entropy pool with the data that has been used and processes it to generate new entropy pool data.

7. The anti-intrusion intelligent security system according to claim 6, characterized in that, When the output value of the multiplexer is in an abnormal state, the initial random large number S1 is replaced by a random number D1 from the random number entropy pool.

8. The anti-intrusion intelligent security system according to claim 4, characterized in that: The security sensing device also includes a human presence sensing radar, which is a millimeter-wave radar sensing device connected to the security host; the alarm response device includes a voice alarm, a flashing light, and a buzzer.

9. The anti-intrusion intelligent security system according to claim 8, characterized in that: The security sensing device and alarm response device are powered by an external independent power supply mechanism, which includes a main AC220V power supply and an external backup power supply module. After the main AC220V power supply is cut off, the external backup power supply module provides uninterrupted power supply. The output end of the external independent power supply mechanism is also equipped with a two-stage output protection circuit.

10. The anti-intrusion intelligent security system according to claim 9, characterized in that: The security host includes a security motherboard, a communication microcontroller, a communication module, and an internal backup power supply module; The communication module is connected to the fixed end (1) of the infrared communication sensing device, the attitude sensor (3), the millimeter-wave radar sensing device, the voice alarm, the buzzer and the external independent power supply mechanism respectively. The communication module is equipped with a detection microcontroller that corresponds to the fixed end (1) of the infrared communication sensing device, the millimeter-wave radar sensing device, the voice alarm, the buzzer and the external independent power supply mechanism. The communication microcontroller is located between the security motherboard and the communication module. It is used to analyze the status of each detection microcontroller on the communication module and feed it back to the security motherboard. The security motherboard is connected to the AC220V main power supply and the internal backup power supply module respectively. After the AC220V main power supply is cut off, the internal backup power supply module provides uninterrupted power supply. The security host is also equipped with a wireless communication module that connects to the Internet of Things cloud platform; the communication module is an Ethernet module, RJ45, or an optical communication module.

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